Physics · Electronics
What is the primary function of the resistor connected between Pin 7 (discharge) and VCC in an IC 555 monostable multivibrator configuration?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1It sets the base output frequency of the continuous square wave.
- 2It provides a direct negative feedback path for amplification.
- 3It controls the charging time constant of the external timing capacitor.✓
- 4It strictly limits the overall current passing through the IC substrate.
Correct answer
It controls the charging time constant of the external timing capacitor.
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